In high school, Shen Xingruo and Lu Jingchen are campus enemies with a body count. She’s the scholarship student who wakes at 4 AM to make red bean buns and fights for every grade like rent depends on it. He’s the bad boy heir to Lu Holdings, a heartthrob with a Ducati and a detention record, and he parks in her bike spot just to watch her explode before first bell. Between violin competitions, math leagues, and business deals that threaten her family’s bakery, their rivalry is the most consistent thing at Yunjiang No. 1 High. Then the accident happens. A rainy night, his motorcycle, her on the back after he insisted on driving her home, and brakes that didn’t catch. Xingruo survives with trauma-induced amnesia, losing two years of memory that include him, their fragile truce, and the night she fell first. They separate after the hospital, her family moves districts, and Lu Jingchen is sent abroad by his father. His stepbrother, the golden-boy Lu Yanze, stays behind, and for two years that’s the end of it.
College brings them back to the same campus and the same war. Xingruo doesn’t remember Jingchen, only that her beat-up violin has a child’s handwriting inside and her chest hurts when she sees his face. He remembers everything and hates that she doesn’t. Now they’re enemies again by choice, with Lu Yanze in the middle as the perfect heartthrob stepbrother who offers her textbooks, protection, and a way out of the Lu Holdings mess that still looms over her mom’s lease. The love triangle cuts sharp between business and old feelings as Jiang Wanyue claws for Jingchen’s attention and Jingchen fights Yanze for Xingruo’s. It’s teen rivalry turned adult, campus turned battlefield, until a note falls out of her violin case during finals. `Xingruo + Jingchen = forever`, dated the year before the accident. When her memory comes back in pieces, bruises, buns, and broken promises, enemies finally don’t make sense anymore. Because amnesia stole two years, but first love stole them both long before that, and getting back together means surviving who they were, who they became, and the truth that the bad boy was hers before he was anyone’s enemy.